Join the Most Relevant JEE Main 2025 Test Series & get 99+ percentile! Join Now
Search any question & find its solution
Question: Answered & Verified by Expert
In this given circuit, no current is passing through the galvanometer. If the cross-sectional diameter of the wire AB is doubled, then for null point of galvanometer the value of AC would

PhysicsCurrent ElectricityNEET
Options:
  • A x4
  • B 4x
  • C 2x
  • D x
Solution:
1454 Upvotes Verified Answer
The correct answer is: x
For a uniform wire, resistances are in the ratio of lengths only.

Looking for more such questions to practice?

Download the MARKS App - The ultimate prep app for IIT JEE & NEET with chapter-wise PYQs, revision notes, formula sheets, custom tests & much more.